Perhaps you should try some spelling variations:
information speech » information speed, information search, information space
communication 1.3 » communication 3.3, communication 4.3, communication 1.1
der developpement » de developpement, des developpements, leur developpement
developpement en » developpement et, developpement des, developpement de
speech power » speech robert, pch power, peer power
power mass » power maps, power base, power case
1.3 der » 2.3 der, 4.3 der, 3.3 der

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies _ information speech power mass communication 1.3 der developpement en afrique.*.